Some of our users are getting a message in outlokk 97 that says " Unable to update free/busy data. The file comtains data that is not valid". I went to Microsoft KNowledge bas and found instructions on how to fix if using Exchagne server - but we don't run exchange server. What is going on and how do we fix it. (Office 97, Windows 95, Netware 4.1) Thanks for any help!!